scholarly journals Nutritional content of Totoaba macdonaldi (Gilbert, 1890), Antioxidants and lipid peroxidation in muscle

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11129
Author(s):  
Priscila Conde-Guerrero ◽  
Lia C. Méndez-Rodríguez ◽  
Juan A. de Anda-Montañez ◽  
Tania Zenteno-Savín
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Gulf Of California ◽  
Temporal Variations ◽  
Antioxidant Enzyme Activities ◽  
Stress Indicators ◽  
Sea Temperature ◽  
The North ◽  
Totoaba Macdonaldi ◽  
Oxidative Stress Indicators

Background Totoaba, Totoaba macdonaldi, is an endemic species of the Gulf of California, where wide variations in sea temperature throughout the year, surface salinities that gradually increase towards the north, and contamination by discharge of wastewater have been recorded. In addition to the challenges of reproduction and swimming, its characteristic biannual migration presents totoaba with changes in environmental factors that could affect oxidative stress indicators. The objective of this study was to assess spatial and seasonal changes in the oxidative stress indicators in muscle samples of totoaba. Methods Reactive oxygen species production, antioxidant enzyme activities and lipid peroxidation levels were quantified by spectrophotometry. Results Results suggest spatial-temporal variations of the oxidative stress indicators in muscle of totoaba that may be associated to a complex interaction between environmental and biological factors, including reproduction and nutrient availability. These results contribute to explain the appeal of totoaba as a marketable meat and suggest totoaba may provide antioxidant nutrients to consumers.

Temporal variation in oxidative stress indicators in liver of totoaba (Totoaba macdonaldi) Perciformes: Sciaenidae

2017 ◽  
Vol 98 (4) ◽  
pp. 833-844 ◽  
Author(s):  
Sandra Berenice Hernández-Aguilar ◽  
Tania Zenteno-Savin ◽  
Juan Antonio De-Anda-Montañez ◽  
Lia Celina Méndez-Rodríguez
Keyword(s):  
Oxidative Stress ◽  
Gulf Of California ◽  
Linear Models ◽  
Glutathione S Transferase ◽  
Stress Indicators ◽  
Sea Temperature ◽  
Predictive Variables ◽  
Totoaba Macdonaldi ◽  
Stress Oxidative ◽  
Oxidative Stress Indicators

Several characteristics of Totoaba macdonaldi Perciformes: Sciaenidae, including migratory movements along temperature gradients make it vulnerable to oxidative stress. Oxidative stress can also be associated with reproduction. The objectives of the present study were to examine oxidative stress indicators in liver of totoaba throughout the seasons (spring, autumn and winter), and the associated fluctuations in superficial sea temperature (SST, °C), as well as to evaluate possible variations between sexes and reproductive maturity stages. A total of 173 liver samples from totoaba captured in the Gulf of California, Mexico, were obtained from April 2010 to February 2013. Superoxide radical production (O2•−), lipid peroxidation (TBARS) levels, and activity of antioxidant enzymes; superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR) and glutathione S-transferase (GST) were quantified spectrophotometrically. Generalized linear models (GLM) were used to determine which factors contribute to explain O2•− production and TBARS levels. The significant predictive variables were the seasons, which were significant in all applied models, as well as SOD and CAT activities. In general, enzyme activity was higher in immature totoaba; this was not seasonally modified. Low temperatures in winter were associated with high O2•− production and TBARS levels, particularly in totoaba that are not yet reproductively mature. Seasonal changes in sea surface temperature did not affect the oxidative stress indicators in mature totoaba (both males and females); this suggests that mature totoaba are less sensitive to temperature changes from an oxidative stress perspective.

scholarly journals Palm oil extracts protected against cadmium chloride poisoning via inhibition of oxidative stress in rats

2022 ◽  
Vol 46 (1) ◽  
Author(s):  
Patrick Chukwuyenum Ichipi-Ifukor ◽  
Samuel Ogheneovo Asagba ◽  
Chibueze Nwose ◽  
Joseph Chukwufumnanya Mordi ◽  
John Chukwuma Oyem
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Superoxide Dismutase ◽  
Palm Oil ◽  
Underlying Mechanism ◽  
Antioxidant Response ◽  
High Dose ◽  
Stress Indicators ◽  
Cadmium Poisoning ◽  
Oxidative Stress Indicators

Abstract Background The probable mechanism of an earlier reported capacity of palm oil extracts to confer protection against high dose cadmium poisoning in rats was reported in this study. Similar experimental design earlier reported by us was retained. Rats therefore were sacrificed at intervals of twelve; twenty four and forty eight hours post CdCl2 insult. Results Oxidative stress and antioxidant status (malondialdehyde, superoxide dismutase, catalase and glutathione) were assessed in tissues (liver, kidney, heart, brain, muscle) and serum. Oxidative stress indicators showed a significantly (p < 0.05) increased lipid peroxidation and alterations in antioxidant defence systems occasioned by drop in catalase and superoxide dismutase enzymes (serum, liver, heart, brain and kidneys) of the rats. Also observed were significant (p < 0.05) reduction in the non-enzymatic antioxidant reduced glutathione over time. Pre-administration of rats with the crude palm oil and its extracts modulated cadmium mediated depletion of the antioxidant capacities of rats acutely exposed to cadmium and rising lipid peroxidation profile. Conclusions Regulation of stress and antioxidant response was the underlying mechanism by which the extracts conferred protection against high dose cadmium insult thus suggesting its potential as a viable therapeutic target against its deleterious effects. Graphical Abstract

Oxidative stress and antioxidant enzymes in triticale shoots under chloride salinization

2020 ◽  
Vol 63 (7) ◽  
pp. 99-105
Author(s):  
Viktor V. Ivanishchev ◽  
Keyword(s):  
Oxidative Stress ◽  
Hydrogen Peroxide ◽  
Lipid Peroxidation ◽  
Cluster Analysis ◽  
Antioxidant Enzymes ◽  
Glutathione Reductase ◽  
Guaiacol Peroxidase ◽  
Short Term ◽  
Stress Indicators ◽  
Oxidative Stress Indicators

We studied alterations in oxidative stress indicators (hydrogen peroxide, superoxide radical, lipid peroxidation – LPO) and alterations in the activity of antioxidant enzymes (catalase, ascorbate peroxidase, guaiacol peroxidase, glutathione reductase) in triticale shoots (Triticosecale) during short-term (0-96 h) sodium chloride stress (120 mM) with statistical methods: principal component analysis (PCA) and cluster analysis. Analysis of alterations in the activity of enzymes with the PCA method does not allow them to be unambiguously included in a single group, despite the fact that they all belong to antioxidant enzymes. The inclusion of oxidative stress indicators in this analysis did not make the picture simpler. Using the cluster analysis method, it can be concluded that under conditions of short-term chloride stress in the shoots of triticale, much more catalase (than other enzymes studied) is associated with the protection of membranes from lipid peroxidation than with the utilization of hydrogen peroxide. This is also reflected by the highest correlation coefficients: catalase – LPO (0.94), catalase – hydrogen peroxide (0.79). The formation of primary clusters between ascorbate peroxidase and glutathione reductase reflect the significance of the association of the ascorbate – glutathione cycle with the processes of utilization of reactive oxygen species (primarily hydrogen peroxide) under experimental conditions. It was also shown that under conditions of short-term chloride stress in the shoots of triticale, guaiacol peroxidase plays the least role in the utilization of hydrogen peroxide. In this case, salt ions again form a single primary cluster, which combines with other clusters at the maximum Euclidean distance in the experiment.

scholarly journals Palm oil extracts’ protected against cadmium chloride poisoning via inhibition of oxidative stress in rats”

2021 ◽  
Author(s):  
Patrick Chukwuyenum ICHIPI-IFUKOR ◽  
Samuel Ogheneovo ASAGBA ◽  
Chibueze NWOSE ◽  
Joseph Chukwufumnanya MORDI ◽  
John Chukwuma OYEM
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Superoxide Dismutase ◽  
Palm Oil ◽  
Underlying Mechanism ◽  
Antioxidant Response ◽  
High Dose ◽  
Stress Indicators ◽  
Cadmium Poisoning ◽  
Oxidative Stress Indicators

Abstract Background: The probable mechanism of an earlier reported capacity of palm oil extracts to confer protection against high dose cadmium poisoning in rats was reported in this study. Similar experimental design earlier reported by us was retained. Rats therefore were sacrificed at intervals of twelve; twenty four and forty eight hours post CdCl2 insult. Results: Oxidative stress and antioxidant status (malondialdehyde, superoxide dismutase, catalase and glutathione) were assessed in tissues (liver, kidney, heart, brain, muscle) and serum. Oxidative stress indicators showed a significantly (p<0.05) increased lipid peroxidation and alterations in antioxidant defence systems occasioned by drop in catalase and superoxide dismutase enzymes (serum, liver, heart, brain and kidneys) of the rats. Also observed were significant (p<0.05) reduction in the non-enzymatic antioxidant reduced glutathione over time. Pre-administration of rats with the crude palm oil and its extracts modulated cadmium mediated depletion of the antioxidant capacities of rats acutely exposed to cadmium and rising lipid peroxidation profile. Conclusions: Regulation of stress and antioxidant response was the underlying mechanism by which the extracts conferred protection against high dose cadmium insult thus suggesting its potential as a viable therapeutic target against its deleterious effects.

scholarly journals Fluctuation of oxidative stress indicators in Salix nigra seeds during priming

2012 ◽  
Vol 63 (10) ◽  
pp. 3631-3642 ◽  
Author(s):  
G. Roqueiro ◽  
S. Maldonado ◽  
M. d. C. Rios ◽  
H. Maroder
Keyword(s):  
Oxidative Stress ◽  
Salix Nigra ◽  
Stress Indicators ◽  
Oxidative Stress Indicators

scholarly journals XBP1-Mediated BiP/GRP78 Upregulation Copes with Oxidative Stress in Mosquito Cells during Dengue 2 Virus Infection

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Tien-Huang Chen ◽  
Yi-Hsuan Chiang ◽  
Jiun-Nan Hou ◽  
Chih-Chieh Cheng ◽  
Eny Sofiyatun ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Target Gene ◽  
Cytosolic Calcium ◽  
Cellular Damage ◽  
Factor X ◽  
Stress Indicators ◽  
Mosquito Cells ◽  
Tropical Areas ◽  
Oxidative Stress Indicators ◽  
Denv2 Infection

Dengue viruses (DENVs) cause dengue fever which is an important mosquito-borne disease in tropical areas. Generally, DENV does not cause cellular damage in mosquito cells. However, alterations in cytosolic calcium ions ([Ca2+]cyt) and the mitochondrial membrane potential (MMP), as well as accumulated reactive oxygen species (ROS), including superoxide anions (O2∙-) and hydrogen peroxide (H2O2), can be detected in C6/36 cells with DENV2 infection. Evident upregulation of BiP/GRP78 also appeared at 24 h postinfection in DENV2-infected C6/36 cells. As expression of BiP/GRP78 mRNA was reduced when the transcription factor X-box-binding protein-1 (XBP1) was knocked down in C6/36 cells, it demonstrated that BiP/GRP78 is the target gene regulated by the XBP1 signal pathway. We further demonstrated that the expression and splicing activity of XBP1 were upregulated in parallel with DENV2 infection in C6/36 cells. In C6/36 cells with BiP/GRP78 overexpression, oxidative stress indicators including [Ca2+]cyt, MMP,O2∙-, and H2O2were all pushed back to normal. Taken together, DENV2 activates XBP1 at earlier stage of infection, followed by upregulating BiP/GRP78 in mosquito cells. This regulatory pathway contributes a cascade in relation to oxidative stress alleviation. The finding provides insights into elucidating how mosquitoes can healthily serve as a vector of arboviruses in nature.

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